From the extremest upward of thy head.
Shak.
Up*whirl" (?), v. t. & i. To rise upward in a whirl; to raise upward
with a whirling motion.
Up*wind" (?), v. t. To wind up. Spenser.
Up*wreath" (?), v. i. To rise with a curling motion; to curl upward, as
smoke. Longfellow.
Up*yat" (?), obs. imp. of Upgive. Chaucer.
{ Ur (?), Ure }, n. (Zoöl.) The urus.
||U"ra*chus (?), n. [NL., fr. Gr. &?; urine + &?; to hold.] (Anat.) A
||cord or band of fibrous tissue extending from the bladder to the
||umbilicus.
||
||U*ræ"mi*a (?), n. [NL., fr. Gr. &?; urine + &?; blood.] (Med.)
||Accumulation in the blood of the principles of the urine, producing
||dangerous disease.
||
U*ræ"mic (?), a. (Med.) Of or pertaining to uræmia; as, uræmic
convulsions.
||U*ræ"um (?), n. [NL., from Gr. &?; &?;, fr. &?; of the tail; cf. L.
||uraeus, adj.] (Zoöl.) The posterior half of an animal.
||
U"ral (?), a. Pertaining to, or designating, the Urals, a mountain
range between Europe and Asia.
U"ral-Al*ta"ic (?), a. Of or pertaining to the Urals and the Altai; as
the Ural-Altaic, or Turanian, languages.
U"ra*li (?), n. [See Wourali.] See Curare.
{ U*ra"li*an (?), U*ral"ic (?), } a. Of or relating to the Ural
Mountains.
U"ral*ite (?), n. [So called because first observed in the Ural
Mountains.] (Min.) Amphibole resulting from the alternation of pyroxene
by paramorphism. It is not uncommon in massive eruptive rocks.
U`ral*i`ti*za"tion (?), n. (Geol.) The change of pyroxene to amphibole
by paramorphism.
U*ram"il (?), n. (Chem.) Murexan.
U"ra*nate (?), n. (Chem.) A salt of uranic acid.
U*ra"ni*a (?), n. [L., from Gr. &?;, i. e., the Heavenly, fr. &?;
heavenly, fr. &?; heaven.]
1. (Class. Myth.) One of the nine Muses, daughter of Zeus by Mnemosyne,
and patron of astronomy.
2. (Zoöl.) A genus of large, brilliantly colored moths native of the
West Indies and South America. Their bright colored and tailed hind
wings and their diurnal flight cause them to closely resemble
butterflies.
U*ra"ni*an (?), a. (Astron.) Of or pertaining to the planet Uranus; as,
the Uranian year.
U*ran"ic (?), a. 1. Of or pertaining to the heavens; celestial;
astronomical.
On I know not what telluric or uranic principles.
Carlyle.
2. (Chem.) Pertaining to, resembling, or containing uranium;
specifically, designating those compounds in which uranium has a
valence relatively higher than in uranous compounds.
U"ra*nin (?), n. (Chem.) An alkaline salt of fluorescein, obtained as a
brownish red substance, which is used as a dye; — so called from the
peculiar yellowish green fluorescence (resembling that of uranium
glass) of its solutions. See Fluorescein.
U*ran"i*nite (?), n. (Min.) A mineral consisting chiefly of uranium
oxide with some lead, thorium, etc., occurring in black octahedrons,
also in masses with a pitchlike luster; pitchblende.
U`ra*nis"co*plas`ty (?), n. [Gr. &?; top of a tent, plate (fr. &?; sky)
+ -plasty.] (Surg.) The process of forming an artificial palate.
{ U`ra*nis*cor"a*phy, U`ra*nis*cor"rha*phy } (?), n. [Gr. &?; the top
of a tent, the palate (fr. &?; sky) + &?; a seam.] (Surg.) Suture of
the palate. See Staphyloraphy.
U"ra*nite (?), n. [Cf. G. uranit, F. uranite.] (Min.) A general term
for the uranium phosphates, autunite, or lime uranite, and torbernite,
or copper uranite.
U`ra*nit"ic (?), a. (Chem.) Of or pertaining to uranium; containing
uranium.
U*ra"ni*um (?), n. [NL., from Uranus the planet. See Uranus.] (Chem.)
An element of the chromium group, found in certain rare minerals, as
pitchblende, uranite, etc., and reduced as a heavy, hard, nickel-white
metal which is quite permanent. Its yellow oxide is used to impart to
glass a delicate greenish- yellow tint which is accompanied by a strong
fluorescence, and its black oxide is used as a pigment in porcelain
painting. Symbol U. Atomic weight 239.
Uranium was discovered in the state of an oxide by Klaproth in 1789,
and so named in honor of Herschel's discovery of the planet Uranus in
1781.
{ U"ran-o`cher, U"ran-o`chre } (?), n. [Cf. F. uranochre.] (Min.) (a) A
yellow, earthy incrustation, consisting essentially of the oxide of
uranium, but more or less impure.
{ U`ra*no*graph"ic (?), U`ra*no*graph"ic*al (?), } a. Of or pertaining
to uranography; as, an uranographic treatise.
U`ra*nog"ra*phist (?), n. One practiced in uranography.
U`ra*nog"ra*phy (?), n. [Gr. &?;; &?; heaven + &?; to write.] A
description or plan of the heavens and the heavenly bodies; the
construction of celestial maps, globes, etc.; uranology.
U*ran"o*lite (?), n. [Gr. &?; heaven + - lite.] A meteorite or
aërolite. [Obs.] Hutton.
U`ra*nol"o*gy (?), n. [Gr. &?; heaven + - logy.] A discourse or
treatise on the heavens and the heavenly bodies; the study of the
heavens; uranography.
||U`ra*nom`e*tri"a (?), n. [NL.] A uranometry.
||
U`ra*nom"e*try (?), n. [Gr. &?; heaven + - metry.] (Astron.) A chart or
catalogue of fixed stars, especially of stars visible to the naked eye.
U"ra*no*plas`ty (?), n. [See Uraniscoplasty.] (Surg.) The plastic
operation for closing a fissure in the hard palate.
U`ra*nos"co*py (?), n. [Gr. &?; + - scopy.] Observation of the heavens
or heavenly bodies.
U`ra*no"so- (&?;), a. (Chem.) A combining form (also used adjectively)
from uranium; — used in naming certain complex compounds; as in
uranoso-uranic oxide, uranoso-uranic sulphate.
<! p. 1586 !>
U"ra*nous ("r*ns), a. (Chem.) Pertaining to, or containing, uranium;
designating those compounds in which uranium has a lower valence as
contrasted with the uranic compounds.
U"ra*nus (-ns), n. [L. Uranus, Gr. O'yrano`s Uranus, o'yrano`s heaven,
sky. Cf. Uranium.]
1. (Gr. Myth.) The son or husband of Gaia (Earth), and father of
Chronos (Time) and the Titans.
2. (Astron.) One of the primary planets. It is about 1,800,000,000
miles from the sun, about 36,000 miles in diameter, and its period of
revolution round the sun is nearly 84 of our years.
This planet has also been called Herschel, from Sir William Herschel,
who discovered it in 1781, and who named it Georgium Sidus, in honor of
George III., then King of England.